Scrub-mate

ABSTRACT

A novel solution for converting a walk behind floor scrubber into a sit and ride behind floor scrubber. The present invention consists of a chassis frame to which five wheels are attached. Two of the front wheels pivot and the up-front safety wheel does not. The wheels that are attached to the rear of the frame, are non-pivotal. The present invention is employed by a person sitting on its&#39; cushioned seat and connecting their arms to the floor scrubbers control handles and rotating them forward. The floor scrubber as it propels forward, pulls the present invention behind it, in tandem. This allows the operator of the floor scrubber to sit and ride instead of walking, while cleaning large commercial size floors. This new procedure saves enormous time and the person controlling the scrubber will be less fatigued from hours of walking. The Scrub-mate is new to the floor cleaning industry, because it eliminates walking of the operator while using a battery-powered walk behind floor scrubber.

BACKGROUND OF THE INVENTION

[0001] This application claims the benefits of U.S. provisional application 60/386,836, filed on Jun. 10, 2002

[0002] The new invention pertains to the field of commercial floor cleaning, in particular, the battery powered walk-behind floor scrubber. It is called the Scrub-mate. It is a mobile sitting unit with five wheels, which eliminates the walking when using this type of commercial floor scrubber. The past and present ways of using a walk-behind floor scrubber are having a person rotate the control handles forward while walking behind the floor scrubber. It can be a two to three hour process and cause fatigue. The Scrub-mate, with its' up-front safety wheel, will cut the job time in half and eliminates walking. This will allow the owners of walk-behind floor scrubbers, to be as efficient as the more expensive one piece riding scrubber. The safety wheel is in place to keep the Scrub-mate from tipping over forward when objects are encountered while scrubbing commercial floors.

BRIEF SUMMARY OF THE INVENTION

[0003] The Scrub-mate converts a walk-behind floor scrubber into a sit and ride behind floor scrubber, allowing the owners of walk-behind floor scrubbers to be as efficient as the more expensive one piece unit riding scrubber, but at a much lower cost.

[0004] Controlled by the operator of the walk-behind floor scrubber, this mobile sitting unit with a safety wheel, follows the floor scrubber in tandem. The only connection between the floor scrubber and the Scrub-mate is the operators' hands and arms.

[0005] The major advantages the Scrub-mate brings about are, no more walking for hours, and a faster, steadier pace, which will cut the job completion time in half.

BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWING

[0006]FIG. 1. Side view of Scrub-mate

[0007]FIG. 2. Side view of Scrub-mate and where the cushioned seat is bolted into steel cross straps.

[0008]FIG. 3. Side view of Scrub-mate and showing location of the utility tray and cup holder

[0009]FIG. 4. Detailed view of where the rear stationery wheels are welded to underneath side of a rear cross bar.

[0010]FIG. 5. Detailed view of up-front safety wheel and harness, and where it is welded to the front end bracket.

[0011]FIG. 6. Detailed view of how front rotating wheel bolts, fit into the slotted holes in front cross bar.

DETAILED DESCRIPTION OF THE INVENTION

[0012] The Scrub-mate is a mobile sitting unit that will convert a walks-behind floor scrubber into a sit and ride behind floor scrubber. This brings about two major improvements to the use of this type of commercial floor scrubber. First, walking is eliminated. Second, the time it takes to complete a job will be cut in half.

[0013] The process of using a walk-behind floor scrubber is that a person rotates the control handles of the floor scrubber forward, and the machine goes forward. The pace is slow and the person operating the scrubber gets fatigued. This fatigue comes from walking on hard concrete or linoleum floors for two hours or more.

[0014] With the Scrub-mate, the pace of the floor scrubber is now faster and steadier. The water solution that is dispersed by the floor scrubber will now be used more efficient.

[0015] The walk-behind floor scrubber's cost plus the cost of the Scrubs-mate is far less expensive than the price of a one piece riding scrubber. This will be a financial benefit to many owners of this type of commercial floor scrubber.

[0016] The Scrub-mate is made of 21 feet of ⅝ inch steel pipe. The main frame of this unit is bent into the shape of the letter U. This is done by using a bending machine. The front of the U-shaped frame is 13 inches in width. The back end of the U-shaped frame is 21½ inches in width. The U-shaped frame flares outward at its' rear. The length of the U-shaped frame is 23 inches, right and left sides. At the rear, the frame curves upward right and left sides, at a 85 degree angle. The length of these right and left sides is 17 inches. The lower frame is a total of 98 inches of a single pipe, curved at four different angles.

[0017] The next step is to weld a crossbar to the underneath side of the front of the frame, 1 inch back from the front end. This flat cross bar is 2{fraction (1/2 )} inches wide and 13½ inches in length, and is in place for several reasons. One, the crossbar is where the two front pivotal wheels are bolted. Two, the cross bar secures the front end of the lower frame and can be used for a footrest.

[0018] A rear crossbar is welded to the underneath side of the rear of the frame. This crossbar is 21 inches in length and 2½ inches wide. This steel crossbar is where the rear stationery wheels are welded, 21 inches apart. This crossbar also secures the rear end of the frame. Its' placement is 15 inches back from the front crossbar.

[0019] Two support poles 30 inches in length, are welded to the insides of back ends of the frame, that curves upward, right and left sides. The bottom of these two support poles is welded to the top of the lower frame, right and left sides, which creates a 96 degree angle.

[0020] A 42-inch piece of {fraction (1/2 )} inch square steel, is used for the seat frame. It is bent into the shape of the letter U. This is done by using a bending machine. This seat frame is welded to the two 30 inch back support poles, 18½ inches up from the lower U-shaped frame. Across the seat frame, two steel straps are welded in place. They are there in order to bolt the durable plastic seat to. These steel straps are 19 inches in length and 1{fraction (1/2 )} inches wide. There are two holes drilled in each strap, 5 inches apart. Four bolts and four T-bolts are used to secure the seat to the seat frame.

[0021] A piece of {fraction (5/8 )} inch pipe, 21 inches in length, is welded between the upper portion of the two rear 30 inch back support poles. This pole is welded in place 1 inch down from the top of the unit. It is in place for back and structure support.

[0022] Two 19 inch seat support poles are welded from the bottom of the seat frame to the top of the lower frame, and creates a 65 degree angle, right and left sides. They are in place for seat support.

[0023] To attach the two front pivotal wheels to the front crossbar, two ¼ inch holes are drilled, 8½ inches apart. In these holes, side grooves are cut in, on opposite sides. This is done by using a punching machine. Because the bolts in these pivotal wheels have side impressions (groves), and in order to tighten the bolts without them turning, these grooves are necessary.

[0024] The front non-pivotal safety wheel is located on the front end of the frame. It is welded to a 7-inch long steel bracket. This wheel is an {fraction (1/4 )} Of an inch higher off the ground than the other four wheels. The purpose is to keep the Scrub-mate from tipping forward, when the Scrub-mate runs over objects on the floor. Flat objects such as: rugs, floor drains, electrical cords, floor dividers. This wheel is very important for balance.

[0025] The rear wheels are welded to the underneath side of the rear crossbar, right and left sides. These wheels are stationery, and they do not pivot. They are 16 inches apart. All wheels are made of rubber, and the diameter of each wheel is 5 inches.

[0026] The procedure for stopping the new invention is simple. When the operator releases the control handles of the floor scrubber, both the floor scrubber and Scrub-mate stop. The Scrub-mate also has a utility tray with a cup holder located on the frame, below the seat.

[0027] In conclusion, this new invention the Scrub-mate, will be a benefit to the owners of new and/or used walk behind floor scrubbers, by converting them into a two piece riding scrubber, with several benefits. When the walk behind floor scrubber was produced, the operator walked. But in this competitive society, the need for speed and efficiency is of utmost importance. The said invention modifies the typical use of a walk behind floor scrubber with the addition of speed and efficiency. The Scrub-mate is safe and durable. 

What I claim as my invention is:
 1. A five wheeled mobile sitting unit, which converts a battery powered walk behind floor scrubber, into a two-piece riding floor scrubber comprising; a) a frame with a front and back end. b) a front end wheel assembly comprising of two pivotal wheels and an up front non-pivoting wheel. c) an up front bracket on said frame supporting up front non-pivoting safety wheel. d) said safety wheel on said bracket, for added balance, and is positioned an ¼ of an inch off the ground. e) a set of non-pivotal wheels are on the rear of said frame. f) An utility tray and cup holder are located on lower portion of said frame. g) Durable seat with cushioned insert on said seat frame, on main frame. 